Piston Ring, Engine

PISTON RING

Ring Gap:
Top Ring 0.30-0.46 mm (0.012-0.018 in.)
Intermediate 0.82-1.18 mm (0.032-0.047 in.)
Oil Control 0.22-0.58 mm (0.010-0.023 in.)

Ring Groove Clearance:
The clearance for the top piston ring can be measured accurately with a typical feeler gauge

Intermediate
(Min) 0.040 mm (0.0016 in.)
(Max) 0.110 mm (0.0043 in.)

Oil Control
(Min) 0.040 mm (0.0016 in.)
(Max) 0.085 mm (0.0033 in.)